R
P
OUTING
ROTOCOLS
OSPF C
E
ONFIGURATION
XAMPLE
Figure 10-5
shows an example of an autonomous system using OSPF routers. The
details of this network follow.
Area 0
IR 2
IR 1
10.0.1.1
10.0.1.2
10.0.3.2
10.0.2.2
Headquarters
ABR 2
ABR 1
10.0.3.1
10.0.2.1
160.26.25.1
160.26.26.1
161.48.2.2
Los Angeles
Virtual link
161.48.2.1
160.26.26.2
Chicago
160.26.25.2
Area 5
Area 6 (stub)
Figure 10-5: OSPF configuration example
Area 0 is the backbone area. It is located at the headquarters and has the following
characteristics:
• 2 internal routers (IR1 and IR2)
• 2 area border routers (ABR1 and ABR2)
• Network number 10.0.x.x
• 2 identified VLANs (HQ_10_0_2 and HQ_10_0_3)
10-16
S
S
I
U
G
UMMIT
WITCH
NSTALLATION AND
SER
UIDE
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